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xiangxiPSO
说明： 详细粒子滤波算法，改进算法。。。。。。。。。。。。。。。。。。。(Time heals everything.)
- 2021-03-06 10:49:46下载
- 积分：1
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graphene
石墨烯的结构编程图,这是费了工作人员很长时间才完成的。(The figures of graphene)
- 2013-09-23 09:09:03下载
- 积分：1
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基流分割程序
tvfemd可进行序列分解，比emd分解效果可能要好一点。(he sifting process is completed using a time varying filter technique.The local cut-off frequency is adaptively designed by fully facilitating the instantaneous amplitude and frequency information. Then nonuniform B-spline approximation is adopted as a time varying filter. In order to solve the intermittence problem, a cut-off frequency realignment algorithm is also introduced. Aimed at improving the performance under low sampling rates, a bandwidth criterion for intrinsic mode function (IMF) is proposed. TVF-EMD is fully adaptive and suitable for the analysis of linear and non-stationary signals. Compared with EMD, the proposed method is able to improve the frequency separation performance, as well as the stability under low sampling rates. Besides, the proposed method is robust against noise interference.)
- 2018-07-19 11:36:59下载
- 积分：1
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2008_5
在三条径的瑞利信道中，对于直接序列扩频：
(1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法，接收机分别采用等均益合并、最大比合并。用Simulink进行仿真，测量BPSK的误码率性能，画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线，请解释在误码率为0.01时，两种合并方式所表现的不同的物理意义。
(2) 设频率已经同步，请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法，用Simulink进行仿真(自己编写代码S-Function方式)，分析所设计方案的时间同步精度，画出比特信噪比与捕获概率的关系曲线。
(3) 设时间已经同步，请设计DS-CDMA一种具体的频率方法，用Simulink进行仿真(自己编写代码S-Function方式)，画出比特信噪比与频率同步误差的关系曲线。
(err)
- 2020-12-23 10:29:06下载
- 积分：1
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2016.11.03DE_SVR（差分进化）
以优化SVR算法的参数c和g为例，对DE（差分进化）算法MATLAB源码进行了详细中文注解。(Differential Evolution algorithm (DE) is a heuristic random search algorithm based on group differences. This algorithm is proposed by R.S and k.p. rice for solving Chebyshev polynomials. DE algorithm is also an intelligent optimization algorithm, which is similar to the previous heuristic algorithm, such as ABC, PSO, etc., which is a heuristic optimization algorithm. The DE algorithm is an optimization algorithm that I used in solving the case study of box coverage.)
- 2021-01-07 14:28:52下载
- 积分：1
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三维装箱MATLAB程序
说明： 基于MATLAB20，能够解决常规的三维装箱问题(Solving the conventional three-dimensional packing problem)
- 2021-03-17 20:19:20下载
- 积分：1
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sampling
演示采样定理，时域采样，频谱周期延拓同时演示采样频率小于2*fc时，产生的混叠效应。可作函数应用(Demonstration sampling theorem, time-domain sampling, the spectrum at the same time cycle extension demonstration sampling frequency is less than 2* fc, the resulting aliasing effect. Function can be used for applications)
- 2008-04-25 11:18:55下载
- 积分：1
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MFSK代码
说明： 多频移键控，水声通信代码，实现水下通信。。(Multi-frequency shift keying, underwater acoustic communication code, underwater communication)
- 2020-12-21 16:52:57下载
- 积分：1
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AGC
在接收机中进行的单频检测与自动增益控制，包括浮点程序和定点程序(Single frequency detection and automatic gain control for receiver)
- 2021-01-26 17:18:41下载
- 积分：1
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一种LDPC编码方法 LDPC_encoder
说明： 一种ldpc编码方法，非常的实用，简洁，快速。侵权删(a method)
- 2020-03-10 23:13:53下载
- 积分：1
